1. CME Geometry Chapter 1 and 2
Quarterly Review
CME Geometry Chapter 1 and 2

2. Vocabulary Line of symmetry Midpoint Line segment Congruent
Parallel lines/ planes
Alternate interior angles
Prism
Consecutive angles
Altitude
Corresponding angles
Angle bisector
Supplementary angles
Perpendicular bisector
Transversal
Equilateral/ Equidistant
Vertical angles
Median
Midline

3. Notations 𝐶𝐷 (line CD) 𝐴𝐵 (segment AB) ∠𝐴𝐶𝐵  (is congruent to)
𝐽𝐾 (length of 𝐽𝐾 )
 (Is perpendicular to)
≇ (is not congruent to)
∥ (is parallel to)

4. Line of Symmetry
The folding line is called line of symmetry.

5. Cross Section
Is the face you get when you slice an 3-D object.

6. Angle Bisector
A segment that split an angle in half.

7. Perpendicular Bisector
Is a line that:
Cross perpendicularly to a segment; and
Splits the segment in half.

8. Median A triangle has three medians.
Is a segment that connects a vertex of a triangle to the midpoint of the opposite side.

9. Midline A triangle has three midlines.
Is a segment that connects the mid points of two sides of a triangle.

10. 180(𝑛−2)
The sum of interior angles of a polygon is 180(𝑛−2) degrees.

11. Geometric figures are CONGRUENT
A geometric figure means points, segments, angles, triangles, quadrilaterals, pentagons, etc.
𝐽𝐾  𝐿𝑀
∠𝑁𝑃𝑄∠𝑅𝑆𝑇
∠𝑃  ∠𝑆
∆𝐴𝐵𝐶∆𝐷𝐸𝐹
□𝐴𝐵𝐶𝐷  □𝐸𝐹𝐺𝐻

12. The Triangle Congruence Postulates

13. Exterior Angle Theorem
𝑚∠4=𝑚∠1+𝑚∠2

14. Vertical Angles Theorem
𝑚∠1=𝑚∠3
𝑚∠2=𝑚∠4

15. Facts and Notation

16. The AIP/PAI Theorem
𝑙 || 𝑚⇔𝐴𝐼 𝑎𝑛𝑔𝑙𝑒𝑠 𝑎𝑟𝑒 𝑐𝑜𝑛𝑔𝑟𝑢𝑒𝑛𝑡

17. IF 𝑙 ǁ 𝑚, Alternate interior angles are congruent.
Corresponding angles are congruent.
Consecutive angles are supplementary.
𝒎∠𝟑+𝒎∠𝟓=𝟏𝟖𝟎
𝒎∠𝟒+𝒎∠𝟔=𝟏𝟖𝟎

18. Problem
Draw the letters M, A, T, and H as block letters. Then describe the planes of symmetry of each letter.

19. Problem What shadows can each shapes cast?
What shapes of cross section can you form with the figures below?

20. Problem
How many lines of symmetry can you draw with the figures below?

21. Problem
What solids can you make with each net below?

22. Problem
For each figure, write a congruence statement and prove the statement.

23. Problem
In the figure below, 𝑀 is the midpoint of 𝐴𝐵 and 𝐶𝐷 . Prove that 𝐴𝐷𝑀≅𝐵𝐶𝑀.

24. Problem
In the figure below, 𝑓 ǁ 𝑔. Classify each pair of angles as alternate interior angles, consecutive angles, or corresponding angles.

25. Problem
Find the measurement angles A – S